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Economics of Power Generation

Economics of Power Generation
Low power factor is usually not due to

Arc lamps
Fluorescent tubes
Induction motors
Incandescent lamp

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Economics of Power Generation
Generating capacity connected to the busbars and ready to take load when switched on is known as

Hot reserve
Spinning reserve
Firm power
Cold reserve

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Economics of Power Generation
When the load factor of a power station increases, the units generated

Remains same
Are increased
None of the listed here
Are decreased

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Economics of Power Generation
The area under a load curve gives

energy consumed
maximum demand
average demand
None of these

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Economics of Power Generation
A load draws a power of 10 kW at a power factor of 0.707 lagging. The lagging kVAR drawn from the supply will be

20 kVAR
10 kVAR
5 kVAR
15kVAR

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Economics of Power Generation
A load drwas active power(P), apparent power(S) and reactive power (Q) from the line. The power factor of the load is

P/S
S/P
P/Q
Q/P

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